Update docs

src/core/math/quaternion.h

@@ -159,18 +159,21 @@ inline Quaternion look(const Vector3& dir, const Vector3& up = VECTOR3_YAXIS)
 	return quaternion(m);
 }
 
+/// Returns the right axis of the rotation represented by @a q.
 inline Vector3 right(const Quaternion& q)
 {
 	const Matrix3x3 m = matrix3x3(q);
 	return m.x;
 }
 
+/// Returns the up axis of the rotation represented by @a q.
 inline Vector3 up(const Quaternion& q)
 {
 	const Matrix3x3 m = matrix3x3(q);
 	return m.y;
 }
 
+/// Returns the forward axis of the rotation represented by @a q.
 inline Vector3 forward(const Quaternion& q)
 {
 	const Matrix3x3 m = matrix3x3(q);